libdvdcss-1.2.12 removed _XBOX unneeded patches
libdvdcss-1.2.12 updated diff files
libdvdcss update to 1.2.13 - incl diff file
libdvdread-libdvdnav update to 4.2.1
libdvdread-libdvdnav - remove unused xbmc patches
libdvdread-libdvdnav - updated diff files
[gui] save and restore the current focused control in LoadSkin rather than ReloadSkin
[gui] move fallbacks to default skin up to the ReloadSkin functions. Fixes #15131
[cosmetic] remove unused m_skinReloading variable
Merge pull request #4107 from Voyager1/libdvd-update

Libdvdread and Libdvdnav update to latest version 4.2.1 - Libdvdcss to 1.2.13
Merge pull request #4603 from jmarshallnz/skin_load_cleanup

Skin load cleanup
videoplayer: adapt lateness detection and dropping to buffering
video player: present correct pts to user for a/v sync (after buffering in renderer)
videoplayer: some rework and documentation
renderer: bump buffers to 5
videoplayer: update frametime, it might change due to fps detection
videoplayer: give streams with invalid fps a chance for fps detection
dvdplayer: allow rewinding at end of stream, do a seek after rewind
X11: ditch SDL for video and window events
X11: Add xbmc icon